public class IsADemo
{
    public static void main(String[] args)
    {
        SalariedEmployee joe = new SalariedEmployee("Josephine",
                                   new Date("Jan", 1, 2004), 100000);
        HourlyEmployee sam = new HourlyEmployee("Sam",
                                   new Date("Feb", 1, 2003), 50.50, 40);

        System.out.println("joe's longer name is " + joe.getName());

        System.out.println("showEmployee(joe) invoked:");
        showEmployee(joe);

        System.out.println("showEmployee(sam) invoked:");
        showEmployee(sam);

    }

    public static void showEmployee(Employee employeeObject)
    {
           System.out.println(employeeObject.getName());
           System.out.println(employeeObject.getHireDate());
    }
}